docs: def save(self, path):
          """
          Save the file to the specified path
          """
          # remember and restore file position
          pos = self.tell()
          self.seek(0)
  
          with fopen(path, 'wb') as output:
              output.truncate(self.length)
              for chunk in iter(lambda: self.read(1024), b''):
                  output.write(chunk)
  
          self.seek(pos)